Jopto 5PCS MAX9814 High Performance Electret MIC Microphone Amplifier Module Auto Gain Control Compatible with Arduino

• The MAX9814 is a high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias. The device features a low-noise preamplifier, variable gain amplifier (VGA), output amplifier, microphone-bias-voltage generator and AGC control circuitry.
• Supply Voltage: 2.7v-5.5v , 3mA current
• Output: 2Vpp on 1.25V bias
• Frequency Response: 20Hz - 20KHz
• Automatic gain, selectable max from 40dB, 50dB or 60dB

Specification: Automatic Gain Control (AGC). Three Gain Settings (40dB, 50dB, 60dB). Programmable Attack Time. Programmable Attack and Release Ratio. 2.7V to 5.5V Supply Voltage Range. Low Input-Referred Noise Density of 30nV. Low THD: 0.04% (typ). Low-Power Shutdown Mode. Internal Low-Noise Microphone Bias, 2V. -40°C to +85°C Extended Temperature Range. Applications/Uses: Bluetooth Headsets, Digital Still Cameras, Digital Video Cameras, Entertainment Systems (e.g. Karaoke), High-Quality Portable Recorders, IP Phones/Telephone Conferencing, PDAs, Two-Way Communicators. Size：25 × 14 × 8 mm Weight: 2.3g Package Content: 5 x MAX9814 Module